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Wartenberg neurological pinwheel

(wart′ĕn-bĕrg″) [Robert Wartenberg, Russian-born U.S. neurologist, 1886–1956] Pinwheel.

Warthin-Starry stain

(war′thĭn-star′ē) [Aldred Scott Warthin, U.S. pathologist, 1866–1931; Allen Chronister Starry, U.S. pathologist, 1890–1973] A specimen stain in which silver nitrate is applied first, and the specimen then exposed to a reducing solution that leaves colloidal silver on the specimen cells or tissues. It is used primarily to identify gram-negative bacterial infections not easily seen with standard staining techniques, including species of Bartonella, Borrelia, Campylobacter, Helicobacter, Legionella, Leptospira, and Treponema.

Warthin tumor

(war′thin) [Aldred Warthin, U.S. pathologist, 1866–1931] A common benign tumor of the parotid gland. SYN: papillary cystadenoma lymphomatosum.


(wash) 1. The act of cleaning, esp. a part or all of the body. 2. A medicinal preparation used in cleaning or coating.

bladder w. Filling the urinary bladder with liquid and then collecting the liquid after voiding to analyze it for abnormal cells or disease markers. SEE: bladder washout.

eye w. A solution used to rinse the eyes. SYN: collyrium.


(wash′owt″) 1. The lowering of the concentration of a substance from a solution, or from the human body, by withholding the substance and allowing it to be lost, metabolized, or excreted. 2. Irrigation of a body cavity or wound with a fluid such as water or saline solution.

bladder w. The filling of the urinary bladder with liquid to remove chemicals, debris, or blood clots. SEE: bladder wash.

nitrogen w. The removal of nitrogen from the body by breathing either 100% oxygen or a combination of oxygen and helium. It is used to measure total lung capacity.


Any of the insects of the suborder Apocrita, order Hymenoptera (except the Formicidae or ants), but more generally restricted to the superfamilies Scolioidea, Vespoidea, and Specoidea. Members have the base of the abdomen constricted, and females have a piercing ovipositor, which in many species is modified into a sting. Many are social, living in large colonies. Common representatives are yellow jackets and hornets.


(wāst) [L. vastus, empty, desolate] 1. Cachexia. 2. Loss by breaking down of bodily tissue. 3. Excreted material no longer useful to an organism.

biomedical w. Medical w.

hazardous w. Waste that is potentially harmful or hazardous or dangerous to the environment or to public health and safety. Such wastes can be industrial by-products, e.g., from petroleum refineries, chemical manufacturing (such as pesticides). They may be liquid (including sludge), solid, or gas. Hospitals, exterminating companies, dry cleaners, photo processing centers, and auto repair shops are other common sources ...

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